CVE-2026-20989

Name: CVE-2026-20989
Creator: NVD / NIST
Published: 2026-03-16T14:18:09.61+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.1/10EPSS 0.11%

Last modified Jun 17, 2026

CVE-2026-20989 is a medium-severity vulnerability rated 5.1/10 on the CVSS scale. Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.

Description

Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

Metrics

CVSS 3.1

2.4/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS 4.0

5.1/10

CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.11%

1.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-347

Affected Software

Vendor	Product	Versions
Samsung	Android	16.0

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03Vendor Advisory

Timeline

Published: Mar 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-20989?

Improper verification of cryptographic signature in Font Settings prior to SMR Mar-2026 Release 1 allows physical attackers to use custom font.

How severe is CVE-2026-20989?

CVE-2026-20989 has a CVSS score of 5.1/10 (MEDIUM severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.

How do I fix CVE-2026-20989?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-20989?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST